Migrated Mojang account to Microsoft, now cannot play Minecraft JAVA Edition

When Minecraft stopped working, I used my Microsoft account. And this issue happened after I changed my main alias from E-Mail 2 to E-Mail 1. I can play Minecraft if I log in with my E-Mail 2.

I purchased Minecraft on my Mojang account before the migration, but I don't use my mojang account and that Microsoft account that was migrated to.

With my Mojang account (E-Mail 1) migrated to Microsoft account (E-Mail 4) I bad the Java Edition. With my first Microsoft account (E-Mail 1, now 3) I had Minecraft Bedrock Edition. And with the other MIcrosoft account (E-Mail 2, now 1) I have both Java and Bedrock.

I purchased Minecraft Bedrock Edition on my Microsoft Account (E-Mail 1, now 3) from the Microsoft Store and I purchased Minecraft Bedrock Edition on my Microsoft account (E-Mail 2, now 1) from the Microsoft Store but the Java Edition I purchased from minecraft.net. On my Mojang account (E-Mail 1, now migrated to Microsoft Account with E-Mail 3) I bought Minecraft Java from minecraft.net.

I am logging into Minecraft Java Edition with the Microsoft account that I migrated my Mojang account to, and instead of being a full/paid version of Minecraft, it is only offering me to play the Minecraft "demo" version.

Hello, Portia. Thanks for reaching out! My name is Lucas, and I'm an Independent Advisor and a Microsoft user just like you. I'll be happy to assist you today.

Did you have two mojang accounts (one with Java and one with Bedrock), or did you have one mojang account (which had Java) and one Microsoft account with Minecraft for Windows, and you migrated this mojang account with Java to the Microsoft account that had Minecraft for Windows?

I ask because you cannot migrate two mojang accounts to only one Microsoft account. So if you had one mojang account with java and one mojang account with bedrock, you migrated them to two different Microsoft accounts.

I do not have a receipt for Minecraft Java Edition on my Microsoft account because I bought it through the Mojang store before the Microsoft/Mojang account integration that happened a few years ago. Thus, my Microsoft account doesn't have a receipt for it because I didn't buy it through Microsoft. I can give my Minecraft username as evidence that I had a copy of Java Edition but besides that I have no other evidence. Now that my Mojang account has been migrated to Microsoft, I can't log in to it to prove I own a copy of Java Edition.

That’s odd because if this is the Minecraft for Windows it will be purchased through Microsoft Store. The Minecraft that can be purchased through Mojang is Minecraft Java Edition.

Kindly make sure that you’re signed in under the account where the Mojang account was migrated. Please try other Microsoft accounts as well.